Girodisc Racing Brakes
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About Girodisc Racing Brakes & Technologies
Girodisc Racing Brakes & Technologies has been at the forefront of high-performance braking since its founding in 2003. What began in Costa Mesa, California — with a single rotor designed for the Ferrari 360 — has grown into one of the most respected names in motorsport braking, now operating out of a purpose-built 17,000-square-foot facility in Bellingham, Washington.
The company was built around a singular philosophy: that superior braking starts with superior materials and meticulous engineering. At the core of the Girodisc lineup is the 2-piece, fully-floating brake rotor — a design that outperforms conventional one-piece rotors in virtually every measurable way. The rotor hat is machined from 6061-T6 aircraft-specification aluminum, while the disc ring is cast from proprietary iron poured and machined entirely in the USA. Every component, from the high-strength alloy steel drive pins to the anti-noise spring washers, is sourced domestically and manufactured in-house.
The Engineering Behind the Float
What sets Girodisc apart from standard rotor manufacturers is the fully floating mount system. Rather than rigidly fixing the rotor ring to the hat, Girodisc uses precision-machined drive pins that allow the ring to expand and contract freely with heat cycles. This means the rotor can self-center between the brake pads, delivering more consistent pedal feel and superior modulation — qualities that matter enormously whether you're chasing lap times or navigating a mountain pass.
The curved vane design used in many Girodisc rotors takes inspiration directly from racing applications. Acting like a centrifugal pump, the vanes draw cooling air through the disc as it spins, providing a significant improvement in thermal management over standard pillar-vane rotors. The result is more consistent braking performance across an entire track session or a long alpine descent.
Weight Savings Without Compromise
One of the most tangible benefits of the Girodisc system is unsprung weight reduction. By replacing the heavy cast-iron hat of a conventional one-piece rotor with a lightweight aluminum counterpart, Girodisc rotors can save several pounds per corner compared to factory units. Reducing unsprung weight improves not just braking, but also acceleration response and suspension dynamics — making these rotors a meaningful performance upgrade even for drivers who never see a racetrack.
Because the Girodisc system is engineered as a direct replacement for the OEM disc, no modifications are required. The rotor bolts directly to the hub and works seamlessly with factory calipers and ABS systems. And when the rotor ring eventually wears out, only the ring needs to be replaced — not the entire assembly — making long-term ownership more economical than it might first appear.
Broad Vehicle Coverage
Girodisc has developed fitments for a wide range of performance vehicles, including Porsche, BMW, Subaru, Ferrari, Lamborghini, Ford, Chevrolet, Volkswagen, Mercedes-Benz, and many others. Each application is developed individually: the engineering team studies the OEM brake system in detail, uses 3D CAD-CAE software to design the new disc, builds prototypes, and validates fitment and performance before production begins. In addition to rotors, Girodisc also produces brake pads, caliper rebuild kits, dust boot kits, and specialty tools such as the caliper piston spreader — a product the company invented in 2005.
For enthusiasts who demand the highest standard in braking technology and want components built with American craftsmanship, Girodisc Racing Brakes represents a compelling choice backed by over two decades of focused development.